Patents by Inventor Ying-Chien Tsai

Ying-Chien Tsai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9244458
    Abstract: A method of numerical-control scraping of a work piece has a preparing step, a scanning step, a flatness-parameter inputting step, a surface-finishing step, a related-parameter inputting step, an auto-scraping step and an analyzing step. The preparing step comprises preparing a multi-axis machine tool, a laser displacement meter, an auto scraping apparatus and a computer. The scanning step comprises scanning the work piece. The flatness-parameter inputting step comprises inputting a flatness-parameter. The surface-finishing step comprises calculating out the to-be-scraped ranges of the work piece and scraping the work piece. The related-parameter inputting step comprises inputting desired PPI and POP in the computer, calculating out the HOP, the DOS and the oil content to obtain the length, the width and the depth of a single scraping process. The auto-scraping step comprises scraping the work piece to meet the requirement. The analyzing step comprises detecting the 3D-appearance drawing of the work piece.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: January 26, 2016
    Assignee: NATIONAL FORMOSA UNIVERSITY
    Inventors: Wen-Yuh Jywe, Tung-Hsien Hsieh, Chia-Hung Chen, Chin-Hui Huang, Ying-Chien Tsai, Yen-Chieh Wang
  • Publication number: 20130190912
    Abstract: A method of numerical-control scraping of a work piece has a preparing step, a scanning step, a flatness-parameter inputting step, a surface-finishing step, a related-parameter inputting step, an auto-scraping step and an analyzing step. The preparing step comprises preparing a multi-axis machine tool, a laser displacement meter, an auto scraping apparatus and a computer. The scanning step comprises scanning the work piece. The flatness-parameter inputting step comprises inputting a flatness-parameter. The surface-finishing step comprises calculating out the to-be-scraped ranges of the work piece and scraping the work piece. The related-parameter inputting step comprises inputting desired PPI and POP in the computer, calculating out the HOP, the DOS and the oil content to obtain the length, the width and the depth of a single scraping process. The auto-scraping step comprises scraping the work piece to meet the requirement. The analyzing step comprises detecting the 3D-appearance drawing of the work piece.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 25, 2013
    Inventors: Wen-Yuh JYWE, Tung-Hsien Hsieh, Chia-Hung Chen, Chin - Hui Huang, Ying-Chien Tsai, Yen-Chieh Wang
  • Patent number: 8459079
    Abstract: An auto-scraping apparatus for a work piece of a hard rail has a tracking device, a driving device and a tool device. The tracking device has a connecting frame, a moving frame, a lifting frame and a tool frame. The moving frame is movably connected to the connecting frame. The lifting frame is movably connected to the moving frame. The tool frame is rotatably connected to the lifting frame. The driving device is connected to the tracking device and has two linear motion units and a rotating motion unit. One of the linear motion units drives the moving frame and the other linear motion unit drives the lifting frame. The rotating motion unit is mounted in the tool frame and has a rotating shaft. The tool device is detachably connected to the driving device and has a tool carrier and a relieving tool.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: June 11, 2013
    Assignees: National Formosa University, Cheng Shiu University
    Inventors: Ying-Chien Tsai, Jia-Hao Li, Jeng-Nan Lee, Wen-Yuh Jywe
  • Publication number: 20120301078
    Abstract: A double-variable-curvature lensed fiber includes a cylindrical fiber body defining a central axis, and a lens body connected integrally to one end of the fiber body. The lens body has first and second inclined curved surfaces disposed respectively at opposite sides of an imaginary plane on which the central axis is disposed, and a light-transmissive portion formed between the first and second inclined curved surfaces. The light-transmissive portion has a first radius of curvature when viewed from a first direction, and a second radius of curvature when viewed from a second direction. The second radius of curvature is different from the first radius of curvature.
    Type: Application
    Filed: December 29, 2011
    Publication date: November 29, 2012
    Inventors: Wood-Hi Cheng, Ying-Chien Tsai, Yu-Da Liu, Li-Jin Wang
  • Publication number: 20120028549
    Abstract: An auto-scraping apparatus for a work piece of a hard rail has a tracking device, a driving device and a tool device. The tracking device has a connecting frame, a moving frame, a lifting frame and a tool frame. The moving frame is movably connected to the connecting frame. The lifting frame is movably connected to the moving frame. The tool frame is rotatably connected to the lifting frame. The driving device is connected to the tracking device and has two linear motion units and a rotating motion unit. One of the linear motion units drives the moving frame and the other linear motion unit drives the lifting frame. The rotating motion unit is mounted in the tool frame and has a rotating shaft. The tool device is detachably connected to the driving device and has a tool carrier and a relieving tool.
    Type: Application
    Filed: July 27, 2010
    Publication date: February 2, 2012
    Applicants: Cheng Shiu University, National Formosa University
    Inventors: Ying-Chien Tsai, Jia-Hao Li, Jeng-Nan Lee, Wen-Yuh Jywe
  • Patent number: 7494399
    Abstract: A fiber grinding process includes: contacting an end of the optical fiber with a grinding surface in such a manner that a central axis of the optical fiber at the end is inclined to the grinding surface; rotating the optical fiber about the central axis; and changing a contact pressure between the end of the optical fiber and the grinding surface by applying a variable torque while rotating the optical fiber. A substantially cone-shaped end face with a substantially elliptic cross-section may be produced. A fiber grinding apparatus is also disclosed.
    Type: Grant
    Filed: July 3, 2007
    Date of Patent: February 24, 2009
    Assignee: National Sun Yat-Sen University
    Inventors: Ying-Chien Tsai, Yu-Kuan Lu, Yu-Da Liu, Wood-Hi Cheng
  • Publication number: 20080096468
    Abstract: A fiber grinding process includes: contacting an end of the optical fiber with a grinding surface in such a manner that a central axis of the optical fiber at the end is inclined to the grinding surface; rotating the optical fiber about the central axis; and changing a contact pressure between the end of the optical fiber and the grinding surface by applying a variable torque while rotating the optical fiber. A substantially cone-shaped end face with a substantially elliptic cross-section may be produced. A fiber grinding apparatus is also disclosed.
    Type: Application
    Filed: July 3, 2007
    Publication date: April 24, 2008
    Applicant: NATIONAL SUN YAT-SEN UNIVERSITY
    Inventors: Ying-Chien Tsai, Yu-Kuan Lu, Yu-Da Liu, Wood-Hi Cheng